GB/T 3098.10-1993 English PDF (GB/T3098.10-1993)

GB/T 3098.10-1993: Mechanical properties of fasteners. Bolts, scrows, studs and nuts made of non-ferrous metals
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GB/T 3098.10-1993
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Mechanical properties of fasteners - Bolts, screws, studs and
nuts made of non-ferrous metals
ISSUED ON: JULY 28, 1993
IMPLEMENTED ON: JULY 01, 1994
Issued by: National Technical Supervision Bureau
Table of Contents
1 Subject content and scope of application ... 3
2 Normative references ... 3
3 Marking system ... 4
4 Materials ... 4
5 Mechanical properties ... 5
6 Test items of mechanical properties ... 8
7 Test methods ... 9
8 Marking of performance grade ... 9
Appendix A Applicable international standard material designations (Informative) .. 11
Additional notes ... 12
Mechanical properties of fasteners - Bolts, screws, studs and
nuts made of non-ferrous metals
This standard equivalently adopts the international standard ISO 8839-1986
"Mechanical properties of fasteners - Bolts, screws, studs and nuts made of non-ferrous
metals".
1 Subject content and scope of application
This standard specifies the mechanical property marking system, indicators, test items,
test methods and markings for non-ferrous metal fasteners.
This standard applies to commercial fastener products such as bolts, screws, studs, nuts
made of copper and copper alloys or aluminum and aluminum alloys, which have a
thread diameter of 1.6 ~ 39 mm, whose thread dimensions and tolerances are in
accordance with GB 196 and GB 197.
This standard does not apply to set screws and similar threaded fasteners that do not
specify tensile strength or nut proof load.
This standard does not specify performance requirements for corrosion resistance and
conductivity.
2 Normative references
GB 196 General purpose metric screw threads - Basic dimensions
GB 197 General purpose metric screw threads - Tolerances
GB 3098.1 Mechanical properties of fasteners bolts, screws and studs
GB 3098.2 Mechanical properties of fasteners - Nuts
GB 3098.6 Mechanical properties of fasteners - Stainless steel bolts, screws, studs
and nuts
GB 3190 Chemical composition of wrought aluminum and aluminum alloys
designation
GB 5231 Wrought coppers - Chemical composition and forms of wrought products
7 Test methods
7.1 Tensile test
Tensile test shall be carried out in accordance with the provisions of Articles 8.1 and
8.2 of GB 3098.1.
7.2 Torque test
Torque test shall be carried out in accordance with the method specified in Article 7.2
of GB 3098.6.
7.3 Proof load test of nuts
Proof load test of nuts shall be carried out in accordance with the relevant provisions of
Chapter 8 of GB 3098.2.
8 Marking of performance grade
8.1 Marking code
The marking code on the product shall be consistent with the marking code of
performance grade in Chapter 3.
8.2 Marking requirements and methods
8.2.1 Bolts, studs, nuts with thread diameter ≥ 5 mm shall be marked.
8.2.2 Mark with convex or concave characters on the top surface of the bolt head; or
with concave characters on the side of the head.
8.2.3 Mark with concave characters on the end surface of the stud.
8.2.4 Mark with concave characters on the support surface or side of the nut.
8.2.5 Marking of left-handed threads shall comply with the provisions of GB 3098.1 or
Article 9.3 of GB 3098.2.
GB/T 3098.10-1993
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Mechanical properties of fasteners - Bolts, screws, studs and
nuts made of non-ferrous metals
ISSUED ON: JULY 28, 1993
IMPLEMENTED ON: JULY 01, 1994
Issued by: National Technical Supervision Bureau
Table of Contents
1 Subject content and scope of application ... 3
2 Normative references ... 3
3 Marking system ... 4
4 Materials ... 4
5 Mechanical properties ... 5
6 Test items of mechanical properties ... 8
7 Test methods ... 9
8 Marking of performance grade ... 9
Appendix A Applicable international standard material designations (Informative) .. 11
Additional notes ... 12
Mechanical properties of fasteners - Bolts, screws, studs and
nuts made of non-ferrous metals
This standard equivalently adopts the international standard ISO 8839-1986
"Mechanical properties of fasteners - Bolts, screws, studs and nuts made of non-ferrous
metals".
1 Subject content and scope of application
This standard specifies the mechanical property marking system, indicators, test items,
test methods and markings for non-ferrous metal fasteners.
This standard applies to commercial fastener products such as bolts, screws, studs, nuts
made of copper and copper alloys or aluminum and aluminum alloys, which have a
thread diameter of 1.6 ~ 39 mm, whose thread dimensions and tolerances are in
accordance with GB 196 and GB 197.
This standard does not apply to set screws and similar threaded fasteners that do not
specify tensile strength or nut proof load.
This standard does not specify performance requirements for corrosion resistance and
conductivity.
2 Normative references
GB 196 General purpose metric screw threads - Basic dimensions
GB 197 General purpose metric screw threads - Tolerances
GB 3098.1 Mechanical properties of fasteners bolts, screws and studs
GB 3098.2 Mechanical properties of fasteners - Nuts
GB 3098.6 Mechanical properties of fasteners - Stainless steel bolts, screws, studs
and nuts
GB 3190 Chemical composition of wrought aluminum and aluminum alloys
designation
GB 5231 Wrought coppers - Chemical composition and forms of wrought products
7 Test methods
7.1 Tensile test
Tensile test shall be carried out in accordance with the provisions of Articles 8.1 and
8.2 of GB 3098.1.
7.2 Torque test
Torque test shall be carried out in accordance with the method specified in Article 7.2
of GB 3098.6.
7.3 Proof load test of nuts
Proof load test of nuts shall be carried out in accordance with the relevant provisions of
Chapter 8 of GB 3098.2.
8 Marking of performance grade
8.1 Marking code
The marking code on the product shall be consistent with the marking code of
performance grade in Chapter 3.
8.2 Marking requirements and methods
8.2.1 Bolts, studs, nuts with thread diameter ≥ 5 mm shall be marked.
8.2.2 Mark with convex or concave characters on the top surface of the bolt head; or
with concave characters on the side of the head.
8.2.3 Mark with concave characters on the end surface of the stud.
8.2.4 Mark with concave characters on the support surface or side of the nut.
8.2.5 Marking of left-handed threads shall comply with the provisions of GB 3098.1 or
Article 9.3 of GB 3098.2.